diff --git a/Tests/helper.py b/Tests/helper.py
index feccce6bc..13c6955e4 100644
--- a/Tests/helper.py
+++ b/Tests/helper.py
@@ -324,7 +324,7 @@ def is_mingw():
     return sysconfig.get_platform() == "mingw"
 
 
-class cached_property:
+class CachedProperty:
     def __init__(self, func):
         self.func = func
 
diff --git a/Tests/test_image_paste.py b/Tests/test_image_paste.py
index 281d5a6fb..4ea1d73ce 100644
--- a/Tests/test_image_paste.py
+++ b/Tests/test_image_paste.py
@@ -1,6 +1,6 @@
 from PIL import Image
 
-from .helper import assert_image_equal, cached_property
+from .helper import CachedProperty, assert_image_equal
 
 
 class TestImagingPaste:
@@ -34,7 +34,7 @@ class TestImagingPaste:
         im.paste(im2, mask)
         self.assert_9points_image(im, expected)
 
-    @cached_property
+    @CachedProperty
     def mask_1(self):
         mask = Image.new("1", (self.size, self.size))
         px = mask.load()
@@ -43,11 +43,11 @@ class TestImagingPaste:
                 px[y, x] = (x + y) % 2
         return mask
 
-    @cached_property
+    @CachedProperty
     def mask_L(self):
         return self.gradient_L.transpose(Image.Transpose.ROTATE_270)
 
-    @cached_property
+    @CachedProperty
     def gradient_L(self):
         gradient = Image.new("L", (self.size, self.size))
         px = gradient.load()
@@ -56,7 +56,7 @@ class TestImagingPaste:
                 px[y, x] = (x + y) % 255
         return gradient
 
-    @cached_property
+    @CachedProperty
     def gradient_RGB(self):
         return Image.merge(
             "RGB",
@@ -67,7 +67,7 @@ class TestImagingPaste:
             ],
         )
 
-    @cached_property
+    @CachedProperty
     def gradient_LA(self):
         return Image.merge(
             "LA",
@@ -77,7 +77,7 @@ class TestImagingPaste:
             ],
         )
 
-    @cached_property
+    @CachedProperty
     def gradient_RGBA(self):
         return Image.merge(
             "RGBA",
@@ -89,7 +89,7 @@ class TestImagingPaste:
             ],
         )
 
-    @cached_property
+    @CachedProperty
     def gradient_RGBa(self):
         return Image.merge(
             "RGBa",
diff --git a/Tests/test_imagepath.py b/Tests/test_imagepath.py
index e38a2068a..de3920cf5 100644
--- a/Tests/test_imagepath.py
+++ b/Tests/test_imagepath.py
@@ -174,7 +174,7 @@ def test_overflow_segfault():
     # through to the sequence. Seeing this on 32-bit Windows.
     with pytest.raises((TypeError, MemoryError)):
         # post patch, this fails with a memory error
-        x = evil()
+        x = Evil()
 
         # This fails due to the invalid malloc above,
         # and segfaults
@@ -182,7 +182,7 @@ def test_overflow_segfault():
             x[i] = b"0" * 16
 
 
-class evil:
+class Evil:
     def __init__(self):
         self.corrupt = Image.core.path(0x4000000000000000)